1. Athens University Paris Sphicas Vassilis Karageorgos (Diploma) NCSR Demokritos Theo Geralis Christos Markou Isidoros Michailakis (Electronics Engineer) Katerina Zachariadou Global Trigger Processor Emulator Dr. Katerina Zachariadou

2. RTPTPGFES LV1TTCFED GTP TTS FRL RCNRU EVM BCN BDN GTP LV1A BackPressure BU Global Trigger Processor Timing, Trigger & Control optical network

3.  Generate Level-1 triggers (according to trigger rules).  Sent triggers to T iming T rigger C ontrol system  Generate Event Number, BX counts and Trigger record data to be sent to the Event Manager (via S-Link64)  Receive T rigger T hrottling S ystem levels (Ready, Busy, Error) Global Trigger Emulator Tasks: TTC GTP TTS EVM

4. Global Trigger Processor Running on PC#1 Event Manager Running on PC#2 Trigger Throttling System Running on PC#3 Intercommunication between programs via sockets over TCP/IP Vassilis Karageorgos University of Athens Diploma work GTP-EVM-TTS simulation

5. Hardware components (final) Quartus + DK1: FPGA code TTC-ex TTC-vi VME FEDs PCIbus GTP emulation G3 PCI-MXI2-VME LV1Acc EVM emulation G3 S-LINK64 TTS PCIbus PC#2: Linux OS PIII 512MB,550MHz PC#1: Linux OS Control VME Control G3 PC#3: Wind. 2000 1GB, 2.6GHz

6. GENERIC-III, S-LIN64 A D E B C F A. FPGA (APEX –Altera 200K usable logic gates) B. 32 MB SDRAM (133Mhz) C. 1 MB Flash D. S_Link64 connectors (data transmission) E. User connectors F. PCI interface for 32b/64b @33/66MHz S-LINK64

7. S-LIN64 Data link to connect front-end to readout at any stage in a dataflow environment Data movement,error detection, return channel for flow control CMC transmitter card: Converts S-LINK64 signals to LVDS format CMC receiver card: Converts LVDS signals to S-LINK64 signals On-board FIFO(32Kbytes) buffers incoming data

8. FEDs PCIbus GTP emulation G3 PCI-MXI2-VME LV1Acc EVM emulation S-LINK64 TTS PCIbus TTC-ex TTC-vi VME Hardware components (Actual) PC#1: Linux OS Labview 6.1/RUlib Control PCI bus Control G3 Quartus + DK1: FPGA code G3 Dig. Oscilloscope HP54615B For hardware tests LV1Acc PC#2: Linux OS PC#3: Wind. 2000 PIV 250MB, 800MHZ

9. VHDL, AHDL Quartus 2.2-Altera software PCI control SLINK-64 control SDRAM control GTP emulation GTP emulator schematic DK1.1 Celoxica design software In Handel-C PCI bus PC Parallel port with a byte-blaster OS: WindowsXX OS: Linux

10. PCI Controller: PCI communication (Dominique Gigi-CERN) Registers for Control, Status, Error, Reset operations (Isidoros Michailakis) PCI control

11. GTP Local FIFO MEM_FULL S-LINK64 (Back_Pressure) MEM_FULL S-LINK64 CONTROL S-LINK64 DATA[63..0] PCI control GTP- transmitter DATA[63..0] WRITE_MEM Command GTP - transmitter

12. DATA[63..0] EVM-receiver S-LINK64 CONTROL PCI control Command Local FIFO S-LINK64 DATA[63..0]

13. S-LINK64 Controller (by Isidoros) Read local fifo Transfer data S-LINK64 control BackPressure PCI transmitter

14. Lemo Output BX_gen BX Bx_Rndm LV1A bxn evn Write_evm GTP_to_EVM_data (evn[31:12]+bxn[11:0]) FIFO_full (Backpressure) S-LINK64 BackPressure GTP- part Local FIFO DATA[63..0]

15. DK1 module that generates the LHC proton beam structure (40.8MHz) 3564 bunches = {[(72b +8e)x3+30e]x2+[(72b+8e)x4+31e]}x3 + {[(72b+8e)x3+30e]x3+81e} Clock = 80 MHz (for tests used the PCI clock @33MHz ) BX is created as in LHC LV1Acc occurs only on full bunches BX generator module Simulator output:

16. Lemo Output BX_gen BX Bx_Rndm LV1A bxn evn Write_evm GTP_to_EVM_data (evn[31:12]+bxn[11:0]) FIFO_full (Backpressure) S-LINK64 BackPressure Local FIFO DATA[63..0] BX_Rndm module

17.  Random number generator (22 bits long  Period = 4x10 6 events)  At non empty BXs generates LV1Accept signals randomly at a frequency of 100KHz (or at any frequency [4Hz, 100KHz])  Associates a BX Number [0,3563] and an Event Number BX_rndm module BX_rndm module tasks:

18. DK1 Handel-C code  Edif file  Symbol for BX_rndm in Quartus CLK BX BXN EVN BX_rndm module LV1-A rate LV1A

19. For this test LV1A @ 50KHz LV1A on the scope

20. Lemo Output BX_gen BX Bx_Rndm LV1A bxn evn Write_Evm GTP_to_EVM_data (evn[31:12]+bxn[11:0]) FIFO_full (Backpressure) S-LINK64 BackPressure Local FIFO DATA[63..0] Write_Evm module

21. 1. Prepares data to be sent to the local FIFO 2. Checks the FIFO full flag (BackPressure) 3. Writes data in FIFO if not full. If the local FIFO is full the data are lost. BX number FIFO full event number Write_Evm module WEN DATA[63..0]

22. Write_Evm module timing

23. Local FIFO Lemo Output BX_gen BX Bx_Rndm LV1A bxn evn Write_evm GTP_to_EVM_data (evn[31:12]+bxn[11:0]) FIFO_full (Backpressure) S-LINK64 BackPressure Local FIFO DATA[63..0]

24. Local FIFO LOCAL FIFO (by Isidoros) FIFO : 1024 x 64 bits words, rw MUX for accessing the Control, Status etc registers

25. Receiver vi running on PC#2: Get data GTP  EVM via SLINK-64 tests GTP vi running on PC#1: Generate Level1 Accept triggers at user defined frequency Send data to the Event Manager

26. GTP emulator conceptual design LHC beam structure, LV1A signal, EVN, BXN SLINK-64 control GTP  EVM via SLINK-64 Summary EVM Quartus + DK1: FPGA code GTP LV1A Dig. Oscill Control G3+VME SLINK-64 TTC GTP TTS EVM

27. Ready Busy  inhibit Synchr. failure  inhibit + synchr command via TTC to FED’s (reset counters) Overflow  reduction of trigger rate Future Plans set of Trigger Rules : “No more than N Level-1 Triggers in a given time interval”. TTS signals TTC GTP LV1A TTS EVM FED BackPressure Further tests of the design+integration tests of all components in a complete GTP emulator :  BackPressure signals from TTS & EVM  Generate Level-1 triggers according to trigger rules  Implement Trigger Summary Block  Standard (FEDkit) receiver

29. RECEIVER GTP emulator SLINK Byteblaster to the scope G3